White Mass for Healthcare Workers: Sunday, October 30, 2016 Posted on April 9, 2016July 21, 2018 by stlouiscma Cathedral Basilica of Saint Louis, 4431 Lindell Blvd, St. Louis, MO 63108. Archdiocesan White Mass for health care providers in honor of St. Luke, patron of physicians. A reception will follow in Boland Hall.